I am trying to add a text box to all my charts. I want to move the text box
to the lower right corner. My macro keeps returning this error at the point
in the macro where the text box gets moved and re-shaped. Any help would be
greatly appreciated.

Option Explicit

Sub Copyright()

Dim chtobj As ChartObject
For Each chtobj In ActiveSheet.ChartObjects
With chtobj.Chart.TextBoxes.Add(131, 80, 86, 17)
.Select
.AutoSize = True
.Formula = "='12 Charts'!$O$2"
End With
Selection.ShapeRange.IncrementLeft 45.74
Selection.ShapeRange.IncrementTop 64.49
Selection.ShapeRange.ScaleHeight 0.73, msoFalse, msoScaleFromBottomRight
Next chtobj
End Sub